Locomotive cab underframe



Auge 1932; E. A. TURNER LOCQIOTIVE CAB UNDERFRANE Filed Nov. 29. 1930 I5Sheets-Sheet 2 9 2 9 1 5 5 w 3 1 .f z

5 m a 1 a L i 5 Z 4 k 31, 7 5 4 NH u u 1 v M/w "m .U 2% nlllu II:WWWWWW. 6 5/ O mvtwrog E. A. TURNER LOCOMOTIVE CAB UNDERFRAME FiledNov, 29, 1930 3 Sheets-$heet 5 IN VEN TSR iatented Aug. 2, 1932 UNITEDSTATES A PATENT OFFICE EDWIN ARCHER TURNER, OF NEW YORKN. 'Y., ASSIGNORTO THE STANDARD STOKER COMPANY, INCORPORATED, A CORPORATION OF DELAWARELOCOMOTIVE CAB UNDERFRAME Application filed November 29, 1930. semrno.498,987.

This invention relates generally to locomotive construction and moreparticularly to improvements in the construction of locomotive cabunderframes. 35' An object of the invention is the provision of a newand improved locomotive cab underframe construction wherebythe design ismaterially simplified, the number of separable parts is reduced, cost ofconstruction in and maintenance is lowered and a more durable andlighter construction is produced.

It is a further object of the invention to provide in a stoker equippedlocomotive. a construction wherein the stoker fuel deliv- 15 eryconduitis formed as an integral unit with the locomotive cab underframe, or asa detachable unit if preferred.

It is a further object of the invention to provide in a striker equippedlocomotive, a 2% construction wherein the locomotive cab underframe isformed with an upstanding flange, the upper portion of which is aper-vtured to form a firedoor ring and the lower portion thereof is apcrturedto receive a 2 stoker fuel conduit.

It is a further object of the invention to provide in a locomotive, anovel cab underframe having formed therewith means for supporting alocomotive cab.

36 To the above and other ends my invention" consists in a certain novelfeatures of construction, and arrangement of parts hereinafter morefully described andillustrated in the accompanying drawings, in whichFig. 1 is a central longitudinal section through the rearward portion ofa locomotive showing the invention in similar section;

Fig. 2 is a sectional view on the line 22 of Fig. 1;

Fig. 3 is a sectional view on the line 3-3 of Fig. 1;

Fig. 4 IS an isometric view of the novel cab underfrarne Fig. 5 is afragmentary view similar to Fig. 1 showing a modified form of theinvention; and o Fig. 6 is a plan view on the line 66 of Fig. 5. v Inthe drawings the locomotive is indicated generally by the numeral 10 andincludes the main frame 11, the cab 12 and cab deck 13. At 14, there isshown the backhead of the firebox 15, constituting a water le of theboiler 16. A portion of the grate o the firebox is shownat- 17. Thebackhead 14. has an opening 18 therethrough arranged to form both a handfiring opening and a stoker firing opening. The cab 12 is supported bythe cab underframe 19 which will be hereinafter described more indetail.

' Referring more particularly to Figs. 1 to 4 inclusive, the cabunderframe 19 is shown as comprising the horizontal plate member orfloor 20 which is cored or apertured as at 21 in order to reduce theweight thereof, and recessed at 22 to conform with the shape of therearward portion of the boiler 16. Formed with the forward edge of theplate member 20 and located centrally thereof is an upstandingflange 23extending above and below the horizontal plane of the plate member 20and attached by suitable means to the backhead 14 at the marginal edgesof the opening 18. The cab underframe 19 is provided with the integrallyformed upstanding flanges 24 and 25, to which are attached the cab sidesheets 26 and 27 respectively; the upstanding flanges 28 and 29 to whichis attached-the cab rear sheet 30; and the upstanding flanges 31 and 32to which is attached the cab front sheet 33. The cab underframeisprovided with an integrally formed depending flange 3 1 at itsrearward end and an integrally formed flange 34a.

depending from the cab underframe plate member 20 adjacent the backhead14 and arranged for attachment thereto, whereby the cab under frame issecurely attached to the boiler backhead. Additional dependingintegrallyformed flanges 35 and 36 may be provided for further securingthe cab underframe from the boiler16.

The boiler 16 is supported at its rearward end fromthe main frame 11 bythe yieldable plate 87, which is attached at its upper end to the boilermud ring 38. A flexible plate 39 attached at its upper end to the flange34 supports the cab under frame 19 at its rearward end from the mainframe 11. It will thus be seen that the cab underframe is free to movewith the backhead as it expands and contracts by reason of its beingflexibly supported from the main frame 11,.

A stoker conduit 40 is formed, preferably although not necessarily, withthe cab underframe 19 and its mouth portion 41 may be formed integralwith the lower portion of the flange 23. The upper portion of the flange23 is apertured at 42 to form a firedoor ring 43 and the lower portionthereofis arranged to form a closure for the lower portion of theopening 18 in the backhead 14. 7 he mouth portion 41 of the stokerconduit extends through the plane of the flange 23, into the firebox 15and opens upwardly therein to deliver fuel at a height above the normallevel of the fire. An opening 44 in the cab underframe 19 communicateswith the stoker conduit 40, and a corresponding opening in the cab deck13 permits easy access to the stoker conduit 40 for purposes ofinspection and permits the fireman to observe the rate of delivery ofthe fuel. Agrating 45 constituting a portion of the cab deck forms anapertured cover for the opening to the stoker conduit 40.

Fuel is advanced throu h the stoker conduit 40 to the firebox by thescrew conve or 46. Suitable means is provided for delivering fuel from asource of supply, as a locomotive tender, not shown, to the stokerconduit 40 including a telescoping conduit 47, the forward portion ofwhich is universally connect ed to the rearward end of the stokerconduit 40 and a screw conveyor 48 mounted in the telescoping conduit-47 and universally con nected to the screw conveyor 46.

The fuel distributing mechanism comprises a plate 49 which extendslaterally from the upper margin of the stoker mouth portion 41 and ispreferably level, serving as a table over which the fuel issuing fromthe mouth portion 41 may be swept by steam jets 50 issuing from thenozzle 51 located in the recess at the upper rearward side of the mouthportion 41.

In Figs. 5 and 6 is illustrated a modified form of the invention inwhich the cab underframe floor forms the cab deck proper, and in whichthe mouth ortion of the stoker conduit is made remova le. As in thepreferred modification a rearward section 52 of the stoker conduit 53may be formed integral with the cab underframe 19 and the flange 23, butthe mouth portion 53, which is in effect a continuation of the rearwardconduit section 52, can be detached if found destroyed by the heat ofthe fire or worn by the passage of fuel therethrough. The mouth portion54 has formed therewith a laterally extending flange 55 which whenapplied is received in the seat 56 formed by the U-shaped lug 57 formedvertically on the flan e 23 adjacent the opening formed by the sto erconduti 53 through the plane of the flange 23.

It is believed evident from the drawings and the description that myinvention provides a id durable structure which is simple in esign andforms a stronger construction than the sameweight of metal inafabricated structure and b reason of the-imcreased strength permits t euse of a lighter structure than is possible with. a fabricatedstructure. There are no joints to work loose and there is no maintenanceafter the structure is once assembled into a locomotive. Furthermore, itpermits a more direct delivery of the fuel through a forward conduitsection free fromabrupt angles or obstructive curves such as maypulverize lump fuel in its conveyance to the firebox.

stoker conduit section formed integral therewith.

3. A locomotive cab underframe including a floor portion having a stokerconduit section formed integral therewith and having an opening in saidfloor portion communieating with said conduit section.

4. A locomotive cab underframe having a stoker conduit section formedintegral therewith, said section protruding beyond the forward centralportion of the underframe and opening upwardly.

5. A locomotive cab underframe having a firedoor ring and a stokerconduit section formed integral therewith.

6. In combination, a locomotive cab underframe having a stoker conduitformed integral therewith, and a mouth portion for said conduitdetachable from said underframe.

7. In a locomotive, in combination, a firebox having a backhead with afiring opening therein, a cab, an underframe for said cab,

and a stoker conduit formed integrally with said underframe andcommunicating with the firebox through said firing opening.

8. In a locomotive, in combination, a firebox having a backhead with afirin opening therein, a cab, a unitary under rame for said cab, and astoker conduit section detachably secured to said underframe and arraned to deliver fuel to the firebox through said firing opening.

9. In a locomotive, in combination, a firebox having a backhead with afiring o ening therein, a cab, an underframe for sai cab, a stokerconduit formed integrally with said underframe and communicating withthe ios firebox through said firing opening, and an upstanding flangeformed integrally with said-underframe and surrounding said conduitsection, said flange overlapping the firing opening of the backhead andbeing apertured at its upper portion to permit hand firing of fuel fromthe cab through said firing opening.

10. In a locomotive having a main frame and a firebox the combination ofa backhead, a cab, an underframe for said cab, a depending flange formedintegrally with said underframe for attachment to said backhead,upstanding flanges formed integrally with said underframe at itsmarginal edges, said cab being supported from said underframe byattachment to said upstanding flanges, a depending flange formedintegrally with the rearward end of said underframe for attachmentthereto of means for supporting the rearward end of said underframe fromsaid main frame.

11. A locomotive cab'underframe having a stoker conduit section formedintegral therewith and a spherical flange depending from and formed withsaid underframe forming the rearward end of said conduit section.

12. A locomotive cab underframe including a cored floor portion, astoker conduit section formed integral with said floor portion, openingsin the top wall of said conduit and said floor portion respectivelyproviding access to said conduit through the opening in said floor.

13. In a locomotive having a main frame and a firebox, the combinationof a backhead having a firing opening therein, a cab, an underframe forsaid cab, a depending flange formed integrally with said underframe forattachment to said backhead,'a stoker conduit formed integral with saidunderframe communicating with said firing opening, upstanding flangesformed integral with the marginal edges of said underframe, said cabbeing supported from said underframe by attachment to said upstandingflanges, and a depending flange formed integral with the rearward end ofsaid underframe or attachment thereto of means for supporting therearward end of said underframe from said main frame.

14. As a new article of manufacture a 1000- motive cab underframe havinga stoker conduit section formed integral therewith, an upstanding flangeformed therewith, a portion of said flange extending above the floor ofsaid underframe and a portion thereof extending below the floor of saidunderframe, said upper portion being apertured to form a firedoor ringand said lower portion being apertured to receive said stoker conduit,upstanding flanges formed integrally with said underframe at its marinal edges, and a depending flange formed integral with the rear- 55ward end of said underframe.

15. A locomotive cab frame member having a stoker conduit section formedintegral therewith.

16. A locomotive cab frame member having astoker conduit section formedtherewith an having an opening communicating with said conduit section.

In testimony whereof I afiix my signature.

E. ARCHER TURNER.

